我是 Swift 和 XCode 的新手，但现在只是尝试一下，看看进展如何。
无论如何，我已经看了 this post 中 Belal Khan 的一些代码。将手机应用程序连接到 MySQL 数据库。不过，它似乎需要更新才能与最新版本的 Swift 配合使用。
我想我已经完成了大部分内容，但我一直在更新一个特定部分。
//
// ViewController.swift
// SwiftPHPMySQL
//
// Created by Belal Khan on 12/08/16.
// Copyright © 2016 Belal Khan. All rights reserved.
//
import UIKit
class ViewController: UIViewController {
//URL to our web service
let URL_SAVE_TEAM = "http://www.example.com/api/createteam.php"
//TextFields declarations
@IBOutlet weak var textFieldName: UITextField!
@IBOutlet weak var textFieldMember: UITextField!
//Button action method
@IBAction func buttonSave(sender: UIButton) {
//created NSURL
let requestURL = NSURL(string: URL_SAVE_TEAM)
//creating NSMutableURLRequest
let request = NSMutableURLRequest(URL: requestURL!)
//setting the method to post
request.HTTPMethod = "POST"
//getting values from text fields
let teamName=textFieldName.text
let memberCount = textFieldMember.text
//creating the post parameter by concatenating the keys and values from text field
let postParameters = "name="+teamName!+"&member="+memberCount!;
//adding the parameters to request body
request.HTTPBody = postParameters.dataUsingEncoding(NSUTF8StringEncoding)
//creating a task to send the post request
let task = NSURLSession.sharedSession().dataTaskWithRequest(request){
data, response, error in
if error != nil{
print("error is \(error)")
return;
}
//parsing the response
do {
//converting resonse to NSDictionary
let myJSON = try NSJSONSerialization.JSONObjectWithData(data!, options: .MutableContainers) as? NSDictionary
//parsing the json
if let parseJSON = myJSON {
//creating a string
var msg : String!
//getting the json response
msg = parseJSON["message"] as! String?
//printing the response
print(msg)
}
} catch {
print(error)
}
}
//executing the task
task.resume()
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
这是我迄今为止更新的内容...
//
// ViewController.swift
// SwiftPHPMySQL
//
// Created by Belal Khan on 12/08/16.
// Copyright © 2016 Belal Khan. All rights reserved.
//
import UIKit
class ViewController: UIViewController {
//URL to our web service
let URL_SAVE_TEAM = "http://www.example.com/api/createteam.php"
//TextFields declarations
@IBOutlet weak var textFieldName: UITextField!
@IBOutlet weak var textFieldMember: UITextField!
//Button action method
@IBAction func buttonSave(sender: UIButton) {
//created NSURL
let requestURL = URL(string: URL_SAVE_TEAM)
//creating NSMutableURLRequest
let request = NSMutableURLRequest(url: requestURL!)
//setting the method to post
request.httpMethod = "POST"
//getting values from text fields
let teamName=textFieldName.text
let memberCount = textFieldMember.text
//creating the post parameter by concatenating the keys and values from text field
let postParameters = "name="+teamName!+"&member="+memberCount!;
//adding the parameters to request body
request.httpBody = postParameters.data(using: .utf8)
//creating a task to send the post request
let task = URLSession.sharedSession().dataTaskWithRequest(request){
data, response, error in
if error != nil{
print("error is \(error)")
return;
}
//parsing the response
do {
//converting resonse to NSDictionary
let myJSON = try NSJSONSerialization.JSONObjectWithData(data!, options: .MutableContainers) as? NSDictionary
//parsing the json
if let parseJSON = myJSON {
//creating a string
var msg : String!
//getting the json response
msg = parseJSON["message"] as! String?
//printing the response
print(msg)
}
} catch {
print(error)
}
}
//executing the task
task.resume()
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
错误就行:
let task = URLSession.sharedSession().dataTaskWithRequest(request){
我得到的错误是无法调用非函数类型“URLSession”的值
最佳答案
改成这样
URLSession.shared.dataTask(with: request, completionHandler: {data, response, error in
...
})
关于swift - 调整 Swift 代码以与 Swift 3 配合使用，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/40544604/